Instead of beginning with some broad goal, they go in search of the fact of great yield—a bit of empirical evidence that is strange and does not fit the paradigm, and yet is intriguing. This bit of evidence sticks out and grabs their attention, like the elongated rock. They are not sure of their goal and they do not yet have in mind an application for the fact they have uncovered, but they are open to where it will lead them. Once they dig deeply, they discover something that challenges prevailing conventions and offers endless opportunities for knowledge and application.
Mastery by Robert Greene